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Solving Problems 63
Unexpected Characters
Lockups and Software Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide.
The computer does not start up
The computer stops responding
NOTICE: You might lose data if you are unable to perform an operating system shutdown.
TO VERIFY THAT THE PROBLEM IS WITH THE EXTERNAL KEYBOARD, CHECK THE INTEGRATED
KEYBOARD —
1
Shut down the computer.
2
Disconnect the external keyboard.
3
Turn on the computer.
4
From the Windows desktop, click the
Start
button, point to
Programs
, point to
Accessories
, and click
Notepad
.
5
Type some characters on the external keyboard and verify that they appear on the display.
If the characters appear now but did not with the external keyboard, you may have a defective external
keyboard. Contact Dell (see page 101).
DISABLE THE NUMERIC KEYPAD — Press <Num Lk> to disable the numeric keypad if numbers are
displayed instead of letters. Verify that the numbers lock light is not lit.
ENSURE THAT THE AC ADAPTER IS FIRMLY CONNECTED TO THE COMPUTER AND TO THE
E
LECTRICAL OUTLET
TURN THE COMPUTER OFF — If you are unable to get a response by pressing a key on your keyboard or
moving your mouse, press and hold the power button for at least 8 to 10 seconds until the computer
turns off. Then restart your computer.